mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
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6c4a9f32ed
+ Pre-open MED file to speed-up reading/writing (following 22349) + Clock-cursor in Display Entity dlg + In Filter dlg, do not perform filtering if it's not needed + In Group dlg, store a user-given name of a new group + Clock-cursor after hypothesis modif as mesh clearing can be long + Treat selected object right at opening of Measure dlgs + Allow removal of elements in a not shown mesh + Make filter work on a not shown mesh + Don't leave orphan nodes at RemoveGroupWithContents + Avoid crash when exporting a group + fields
111 lines
4.5 KiB
Plaintext
111 lines
4.5 KiB
Plaintext
/*!
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\page revolution_page Revolution
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\n Revolution is used to build mesh elements of plus one
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dimension than the input ones. Boundary elements around generated
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mesh of plus one dimension are additionally created. All created
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elements can be automatically grouped. Revolution can be used to create
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a \ref extrusion_struct "structured mesh from scratch".
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<em>To apply revolution:</em>
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<ol>
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<li>From the \b Modification menu choose the \b Revolution item or click
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<em>"Revolution"</em> button in the toolbar.
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\image html image92.png
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<center><em>"Revolution" button</em></center>
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The following dialog common for line and planar elements will appear:
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\image html revolution1.png
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</li>
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<li>In this dialog:
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<ul>
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<li>Use \a Selection button to specify what you are going to
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select at a given moment, \b Nodes, \b Edges or \b Faces.
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\image html image120.png
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<center><em>"Selection" button</em></center>
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</li>
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<li>Specify \b Nodes, \b Edges and \b Faces, which will be revolved, by one
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of following means:
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<ul>
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<li><b>Select the whole mesh, sub-mesh or group</b> activating this
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checkbox.</li>
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<li>Choose mesh elements with the mouse in the 3D Viewer. It is
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possible to select a whole area with a mouse frame.</li>
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<li>Input the element IDs directly in <b>Node IDs</b>, <b>Edge
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IDs</b> and <b>Face IDs</b> fields. The selected elements will
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be highlighted in the viewer, if the mesh is shown there.</li>
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<li>Apply Filters. <b>Set filter</b> button allows to apply a
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filter to the selection of elements. See more about filters in
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the \ref filtering_elements "Selection filters" page.</li>
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</ul>
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</li>
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<li>Specify the \b Axis of revolution:
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<ul>
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<li>Specify the cooordinates of the start \b Point of the
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axis of revolution; either directly or by picking a node
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in the Viewer (selection of nodes is activated as you click
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the \a Selection button).</li>
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<li>Specify the \b Vector of the axis in either of three ways:
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<ul>
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<li>directly adjust vector components;</li>
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<li>click \a Selection button, chose <em>From Origin to
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selected Point</em> in the opened menu and pick a node
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in the Viewer; </li>
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<li>click \a Selection button, chose <em>Normal to
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selected Face</em> in the opened menu and pick a mesh
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face in the Viewer.</li>
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</ul></ul>
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</li>
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<li>Specify the \b Angle of revolution and the <b>Number of
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steps </b> of revolution,
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<ul>
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<li> <b>Angle by Step</b> - the elements are revolved by the
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specified angle at each step (i.e. for Angle=30 and Number of
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Steps=2, the elements will be extruded by 30 degrees twice for a
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total of 30*2=60)
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\image html revolutionsn2.png "Example of Revolution with Angle by Step"
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</li>
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<li> <b>Total Angle</b> - the elements are revolved by the
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specified angle only once and the number of steps defines the
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number of iterations (i.e. for Angle=30 and Number of Steps=2,
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the elements will be revolved by 30/2=15 degrees twice for a
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total of 30).
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\image html revolutionsn1.png "Example of Revolution with Total Angle"
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</li>
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</ul>
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</li>
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<li>Specify the \b Tolerance for the operation, which is used to
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detect nodes lying on the axis of revolution.
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</li>
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<li>Activate <b>Preview</b> check-box to see the result mesh in
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the viewer.
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</li>
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<li>If you activate <b>Generate Groups</b> check-box, the <em>result elements</em>
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created from <em>selected elements</em> contained in groups will be
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included into new groups named by pattern "<old group
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name>_rotated" and "<old group name>_top". For example if a
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selected quadrangle is included in \a g_Faces group (see figures
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below) then result hexahedra will be included in \a
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g_Faces_rotated group and a quadrangle created at the "top" of
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revolved mesh will be included in \a g_Faces_top group. <br>
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\image html extrusion_groups.png
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\image html extrusion_groups_res.png
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<p> This check-box is active only if there are some groups in the mesh.
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</li>
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</ul>
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</li>
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<li>Click \b Apply or <b> Apply and Close</b> button to confirm the
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operation.</li>
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</ol>
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<br><b>See Also</b> a sample TUI Script of a
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\ref tui_revolution "Revolution" operation.
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*/
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